package priv.bestbeat.reportcenter.core.mq.rocket.example;

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendCallback;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

/**
 * @author 张渠钦
 * @date 2022/4/18 10:29
 */
public class AsyncProducer {

    public static void main(String[] args) throws Exception {
        DefaultMQProducer producer = new DefaultMQProducer("g2");
        producer.setNamesrvAddr("localhost:9876");

        producer.start();

        producer.setRetryTimesWhenSendAsyncFailed(0);

        int messageCount = 100;

        final CountDownLatch countDownLatch = new CountDownLatch(messageCount);

        for (int i = 0; i < messageCount; i++) {
            final int index = i;
            Message msg = new Message("topic2","tagB","order2","Hello world".getBytes(RemotingHelper.DEFAULT_CHARSET));

            producer.send(msg, new SendCallback() {
                @Override
                public void onSuccess(SendResult sendResult) {
                    countDownLatch.countDown();
                    System.out.printf("%-10d OK %s %n", index, sendResult.getMsgId());
                }

                @Override
                public void onException(Throwable e) {
                    countDownLatch.countDown();
                    System.out.printf("%-10d Exception %s %n", index, e);
                    e.printStackTrace();
                }
            });
        }

        countDownLatch.await(5, TimeUnit.SECONDS);
        producer.shutdown();

    }

}
